Test your
fertility before it's a question.

~50%
of infertility involves a male factor
~90d
sperm renewal cycle
12
biomarkers analysed
Take the 2-min quizFree, no account needed

Half of fertility cases involve male factors, but men are rarely the first to test. Get a six-marker hormone panel run in an ISO-certified German lab, with results read by a physician in 3–5 days.

WHAT MEN SAY
+1,500 men just started their journey · be an early adopter
Markus testimonial avatar
Markus, 36
Berlin

I'd never actually checked. Thirty minutes at the kitchen table and I finally knew where I stood.

Sebastian testimonial avatar
Sebastian, 39
Munich

We'd been trying for a year. Turns out it was me all along, and it was fixable. Wish I'd tested sooner.

Daniel testimonial avatar
Daniel, 34
Hamburg

Low testosterone, nothing dramatic. Caught it early, addressed it. The follow-up call was the best part.

Tobias testimonial avatar
Tobias, 41
Cologne

I didn't know male fertility declined at all. This kit quietly changed how I think about the next five years.

The science

Four things every man should know.

Read the science brief
01
Male factor is half of the story.

In roughly 50% of infertility cases, male factors contribute. Yet most evaluations start (and end) with the partner.

02
Sperm changes with age.

Sperm DNA integrity, motility, and concentration shift after 35, and those changes accelerate after 40.

03
What you do today shows up in ~90 days.

Spermatogenesis takes roughly three months. Lifestyle and hormone changes become measurable the next quarter.

04
Knowing earlier gives you options.

Lifestyle interventions, supplementation, or sperm cryopreservation. All more effective when started early.

THE SCIENCE

Four findings that changed how we think about male fertility.

Read the evidence library
01 · Sperm decline
1973 → 2011
declining trend

A large meta-analysis found sperm concentration and total sperm count declined substantially over four decades. Male fertility is not something to take for granted.

Levine et al., 2017
Human Reproduction Update
Editorial illustration: long-term decline in sperm concentration across Western cohorts
02 · More mutations
+2 mutations per year
de novo mutations

Sperm carries more new DNA mutations as men age. One landmark Icelandic study estimated roughly two additional de novo mutations for every year of paternal age.

Kong et al., 2012
Nature
Editorial illustration: de novo sperm DNA mutations rising with paternal age
03 · Age changes biology
Vol · motility · shape
all decline with age

A large clinical cohort showed semen volume, sperm motility, and normal morphology all decline with age. Fertility shifts even when men feel perfectly healthy.

Johnson et al., 2015
Ageing Research Reviews
Editorial illustration: semen volume, motility and morphology decline with age
Two ways to start

Start free, or skip ahead to data.

Free~2 min
The Fertility Quiz

13 questions across age, lifestyle, medical history and symptoms — scored against ESHRE and AUA guidance. You get a personalised risk band and a clear yes/no on whether testing makes sense for you now.

€89At-home15 min
Hormone Panel 01

Total + free Testosterone, FSH, LH, Prolactin, Estradiol and SHBG. Finger-prick sample, pre-paid return to an ISO 15189 lab, physician-reviewed report in 3–5 working days.

How it works

Three steps,
one envelope,
real answers.

01
Take the quiz

A short intake based on ESHRE guidance. Takes ~2 minutes.

02
Collect at home

Finger-prick sample in the morning. Pre-paid return label included.

03
Review results

Digital dashboard with physician notes and next steps in 3–5 days.

The mission

Half of the equation
shouldn't go untested.

Sperm counts in the West have fallen by more than 50% since the 1970s, and male factors drive roughly half of all fertility cases. We're a Berlin team working with German andrology clinics, ISO-certified labs and university hospitals to give men the same diagnostic standard their partners already have. Hormones now. Sperm analysis next. Cryopreservation after that.

Q2 2026 · Live
Hormone Panel 01

Six-marker at-home blood panel with physician review.

Q4 2026 · Next up
Sperm Quality Analysis

At-home donation kit with overnight-shipped analysis. Motility, count, morphology, DNA fragmentation.

Get notified
2027 · Coming
Sperm Cryopreservation

Partner-lab freezing and long-term storage, managed through the FutureKit dashboard.

Get notified
2027+ · On the roadmap
Female Fertility: Egg Freezing & Ovarian Reserve

Expanding beyond male fertility: AMH-based ovarian age assessment and clinic-partnered egg freezing.

Get notified
FAQ

Questions we
get a lot.

Not here? Email info@futurekit.co. A real human replies within one business day.

THE NEWSLETTER

One letter, every other Sunday.

New research on male fertility, translated into English. No crisis headlines, no supplements to sell. Written by our medical team.

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